LG LM-D2540A, Manual

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IC501 Troubleshooting refer
TAPE REC check (A252, Q202 On: R273, R223 High
IC202 PIN11, 14 signal input check
IC202 PIN9, 16 output check
IC201 ‘6” (12V) , PIN4 High check
L203 PIN5, 6 oscilates or not
DECK replaement
Q253, Q203 Base “Low” check
Q253, Q203 replaement
IC202 PIN18 VCC check
IC501 Troubleshooting check
C236(+) power input check
Troubleshooting check refer
IC501 Troubleshooting check
Q208 replaement
L203 replaement
Q208 Base 0.6V check
Q208 Collector Low
Q207 replaement
normal
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
Dubbing check (“NORMAL”or “HIGH”) check
Q252, 202 “OFF”//”ON” : R273, 223 “LOW” // “HIGH”
Q253, 203 “OFF”//”ON” : R225, 275 “LOW” // “HIGH” IC501 Troubleshooting check
REC check refer
YES
YES
NO